Hyundai Santa Cruz: Engine Control System / Intake Air Temperature Sensor (IATS)

- Description Mounted inside the Manifold Absolute Pressure Sensor, Intake Air Temperature Sensor (IATS) detects the intake air temperature.To precisely calculate the amount of air, correction of the air temperature is required as the air density varies with the temperature. So the ECM uses not only MAPS signal but also IATS signal. This sensor has a Negative Temperature Coefficient (NTC) thermistor with resistance in reverse proportion to the temperature.

1. Switch "OFF" the ignition.

2. Disconnect the IATS connector.

3. Measure resistance between the IATS terminals 1 and 2.

4. Check that the resistance is within the specification.

Specification : Refer to "Inspection"

1.Turn ignition switch OFF and disconnect the battery negative (-) cable.

2.Disconnect the manifold absolute pressure sensor (MAPS) connector (A).

3.Remove the mounting bolts (B), and then remove the sensor from the intake manifold.

Tightening torque :8.8 - 10.7 N.m (0.9 - 1.1 kgf.m, 6.5 - 7.9 lb-ft)

• Install the component to the specified torques.

• If a part is dropped, replace it with a new one and discard the dropped part as invisible damage may be caused.

• Insert the sensor in the installation hole and be careful not to damage it.

1.Install in the reverse order of removal.